The RPG-2 is a Soviet anti-tank weapon used throughout the Cold War to great effect, derived from the RPG-1. It is very effective against all but the most modern of armoured vehicles, with well-manufactured grenades penetrating around 180mm of RHA steel. These weapons have been seen in the hands of rebel fighters throughout the world, most notably in the Vietnam War, though Soviet forces deployed overseas have priority for replacement by the more modern RPG-7.